G Kumar

@veltech.edu.in

Associate Professor and Civil Engineering
Vel Tech Rangarajan Dr.Sagunthala R&D Institute of Science and Technology

G Kumar


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https://researchid.co/kumarggeo
19

Scopus Publications

486

Scholar Citations

6

Scholar h-index

2

Scholar i10-index

Scopus Publications

  • Groundwater salinization and suitability assessment in the coastal aquifer of the Thiruvallur district, India
    Vijayakumar A, Kumar G, Selvakumar S
    Water Quality Research Journal, 2025
    This study was conducted to assess the groundwater suitability for drinking and irrigation and to recognize the comprehensive controls of groundwater salinization in the coastal regions of the Thiruvallur district. For this purpose, groundwater from 54 dug and bore wells at locations covering most of the coastal aquifer within 10 km was sampled and analyzed for various physicochemical parameters. The analytical results expose that the groundwater in the study area is slightly alkaline to alkaline, moderately fresh to highly saline, and very high in hardness. The dominance of significant ion concentrations was found in the following order: Na+ > Ca2+ > Mg2+ > K+ = Cl− > HCO3− > SO42− > NO3− >PO43− > F–. The Water Quality Index (WQI) map shows that 70% of the groundwater samples are unsuitable for drinking due to the enhanced levels of TDS, salinity, and significant major ionic concentrations. However, the rest of the groundwater samples are in excellent to good condition. The Hydrochemical Facies Evaluation Diagram (HFE-D) reveals that many samples show the overlapping in the mixing line between fresh groundwater and saltwater caused by seawater intrusion.
  • Sol–Gel Synthesis and Antibacterial Effects of a Nano-Enhanced Cd Doped ZnO Nanorod Conjugate
    N. Sheen Kumar, S. R. Gibin, Kumar Govindhasamy, A. Mariappan, A. Muthuvel, Rafa Almeer
    Physics of the Solid State, 2025
    Abstract In this work, ZnO and Cd doped ZnO nanorods (NRs) were synthesized using a hydrazine-assisted sol–gel method, followed by two annealing at temperatures (300 and 500°C). X-ray diffraction (XRD) analysis confirmed that the samples possess a hexagonal wurtzite crystalline structure. Transmission electron microscopy (TEM) revealed that the Cd doped ZnO nanoparticles are rod-shaped. X-ray photoelectron spectroscopy (XPS) indicated that Cd2+ ions successfully substituted into the Zn lattice. Photoluminescence (PL) analysis showed intense UV-region luminescence at 500°C due to Zn and oxygen vacancies and defects. These results suggest that Cd doped ZnO NRs annealed at 500°C could be promising candidates for next generation UV detectors. Furthermore, the antibacterial tests demonstrated that Cd2+ incorporation significantly enhanced that antibacterial effects of ZnO NRs, particularly against S. aureus (15 ± 0.85 mm) and E. coil (14 ± 0.71 mm) under light exposure. Thus, Cd-doped ZnO NRs offer great potential as an alternative antibacterial materials, especially in biomedical applications.
  • INVESTIGATIONS ON STRENGTH PROPERTIES OF CONCRETE USING SUSTAINABLE RUBBER INDUSTRIAL WATER IN CONCRETE
    Revista Romana De Materiale Romanian Journal of Materials, 2025
  • Recent trends in the development and growth of solar technologies: a review
    K. Sunil KUMAR
    Journal of Thermal Engineering, 2025
    The generation of power from solar-based power plants has wide issues in terms of less solar radiation throughout the year.One more issues pertaining the solar power plants is solar panel costs are very high and the power generation per unit is Rupees twenty, In this research study, methods used for the generation of solar panels and the various types of literature concerning the generation of power, maintenance of panels and solar radiation intensities parameters are deeply investigated and the minimal land requirements for installing the solar power plants has been discussed.The important findings from the various kinds of investigations that have recently been conducted on solar photovoltaic, solar thermal and solar photo voltaic thermal systems is inclination angle varying from 20 degrees results in achieving 1200 W/m 2 followed by solar Photovoltaic systems gives enormous power attainment of 10 kWh/m 2 /day.But Solar Photovoltaic and solar thermal give the very least power generation than solar photovoltaic thermal systems range of 2 kWh/m 2 /day to 4 kWh/m 2 / day.The novelty from various findings and literature gaps involved in a research study is design of solar photo voltaic thermal systems is very simple and requires very little space compared to solar photo voltaic and thermal systems.
  • Typical growth of roads with modern materials an art views
    Vijayakumar Radhakrishnan, Kumar Govindhasamy
    Aip Conference Proceedings, 2024
  • Groundwater Quality Assessment using Multivariate Data Analysis in North Tamil Nadu Region, India
    Indian Journal of Environmental Protection, 2024
  • Assessment of the Sub-Base Material for the Optimum Moisture Content and Maximum Dry Density Using Amalgamated Pond Ash with Reclaimed Asphalt on Road Pavement
    Radhakrishnan Vijayakumar, Kumar Govidhasamy
    Journal of Ecological Engineering, 2024
    The subgrade is a crucial part of the pavement structure, as it transmits the load of vehicles on the pavement to the subsoil. The stability of the pavement depends on the stability characteristics of the subgrade. Roadwork waste materials (RWM) constitute a significant portion of waste materials used for roadway construction, particularly in base fill and backfill layers. Due to the shortage of virgin raw aggregates from quarries, alternative materials, such as RWM, are used as replacements in regular roadway construction. This research conducted a wide range of laboratory and field evaluations to determine the engineering properties of pond ash (PA) and reclaimed asphalt pavement (RAP), focusing on bottom ash as a blended material. Geotechnical parameters, such as particle size and mechanical properties of the materials, were assessed to evaluate their performance in pavement base or sub-base applications. The interaction of integrity between pond ash, RAP, and natural backfill as homogeneous materials was assessed by examining consistency characteristics concerning optimum moisture content (OMC) and maxi - mum dry density (MDD). Six proportions of pond ash, RAP, and backfill soil (PA, RAP, NBS) were identified and used, with the optimal proportion being 50%:30%:20%. The grain size of RAP required for soil testing suitability will be obtained by disintegration using an earth hammering machine.
  • The Combined Effect of Pond Ash with Borrowed Soil Materials Along with Milling Waste for Flexible Pavement Sub-Grade Crater Foiling and Strength Characteristic Enhancement
    Radhakrishnan Vijayakumar, Kumar Govindhasamy, K. Sunil Kumar
    Ecological Engineering and Environmental Technology, 2024
    the
  • Groundwater Quality and Suitability Assessment in Tirupur Region, Tamil Nadu, India
    Kumar G., Saravanan Kothandaraman, Kathiresan Karuppanan, Sajjad Hussain
    Journal of Chemistry, 2024
    The study aims to understand the hydrochemical characteristics and groundwater suitability for agricultural and drinking purposes. For this purpose, 21 groundwater samples were collected, and major physicochemical parameters such as pH, EC, TDS, temp, salinity, Ca2+, Mg2+, Na+, K+, HCO3−, Cl−, and SO42− were analyzed, followed by the standard analytical procedures. Different groundwater quality graphical representations were constructed by using Aqua Chem software. The results indicate groundwater samples were alkaline with fresh to moderate saline in nature, sixty-eight percent of the samples were suitable for drinking in accordance with WHO, and thirty-two percent of the samples were unsuitable due to the excess amount of different ionic concentrations derived from natural and various anthropogenic sources. Irrigation water quality parameters such as SAR, EC, PI, Na %, RSBC, MR, and KR were used to understand the irrigation suitability. The US salinity diagram exemplifies that most groundwater samples fall in the C3S1 category with high salinity hazard and low alkali hazard. The Wilcox plot reveals that 80% of the samples were found under very good to permissible limits, and few samples fall with doubtful to unsuitable quality due to the excess amount of alkali and salinity. Permeability index values show that groundwater is suitable for irrigation. Three major hydrochemical facies were identified with the dominance order of mixed CaMgCl, NaCl, and CaCl. Gibb’s plot suggests that evaporation and rock-water interaction are the dominant natural mechanisms controlling the groundwater chemistry in the present study area.
  • Geospatial Assessment of LULC Changes in Western Tamil Nadu, India
    Water and Energy International, 2024
  • Analysis of Hydro Geochemical Quality in and around Tiruvallur District, Tamil Nadu using Geostatistical Techniques
    Kumar Govindasamy, Thangavelu Perumal, Baskar Sellamuthu
    Aip Conference Proceedings, 2023
  • Extraction of Heavy Metal Ion from Industrial Wastewater by using Bio-Nanomaterial Composite
    Baskar Sellamuthu, Aswin Sidhaarth Kovilvenni Ramachandran, Kumar Govindasamy
    Aip Conference Proceedings, 2023
  • Optimization of Atterberg limits of treated expansive soils with Taguchi method
    Jemal Aliy Gobena, G. Kumar, S. Suppiah
    Materials Today Proceedings, 2020
  • Land suitability assessment using remote sensing and geographical information system in Mannargudi block, South India
    International Journal of Scientific and Technology Research, 2019
  • Strength behavior of pumice stone lightweight concrete beam in contrast with reinforced concrete beam
    R. Saravanakumar*, , R. Veerakumar, G. Kumar, , and
    International Journal of Recent Technology and Engineering, 2019
  • Experimental study on partial replacement of cement by fly ash
    Journal of Advanced Research in Dynamical and Control Systems, 2018
  • Hydrogeochemical characteristics and groundwater contamination in the rapid urban development areas of Coimbatore, India
    S. Selvakumar, N. Chandrasekar, G. Kumar
    Water Resources and Industry, 2017
  • Evaluation of groundwater potential index (GWPI) using geophysical survey in Kallar Watershed, Tamil Nadu, India
    International Journal of Earth Sciences and Engineering, 2016
  • Climatic water balance study and drought assessment in Kallar watershed, Tamil Nadu, India
    International Journal of Earth Sciences and Engineering, 2016

RECENT SCHOLAR PUBLICATIONS

  • Recent trends in the development and growth of solar technologies: a review
    KS Kumar, R Surakasi, K Govindhasamy, G D'mello, B Tharanisrisakthi
    Journal of Thermal Engineering 11 (4), 1064-1074 , 2025
    2025
    Citations: 1
  • Groundwater salinization and suitability assessment in the coastal aquifer of the Thiruvallur district, India
    A Vijayakumar, G Kumar, S Selvakumar
    Water Quality Research Journal 60 (1), 60 , 2025
    2025
    Citations: 3
  • Sol–Gel Synthesis and Antibacterial Effects of a Nano-Enhanced Cd Doped ZnO Nanorod Conjugate
    NS Kumar, SR Gibin, K Govindhasamy, A Mariappan, A Muthuvel, ...
    Physics of the Solid State 67 (2), 111-119 , 2025
    2025
    Citations: 1
  • Typical growth of roads with modern materials an art views
    V Radhakrishnan, K Govindhasamy
    AIP Conference Proceedings 3192 (1), 020024 , 2024
    2024
  • Groundwater Quality and Suitability Assessment in Tirupur Region, Tamil Nadu, India.
    S Kothandaraman, K Karuppanan, S Hussain
    Journal of Chemistry 2024 , 2024
    2024
    Citations: 8
  • Groundwater quality and suitability assessment in Tirupur region, Tamil Nadu, India
    G Kumar, S Kothandaraman, K Karuppanan, S Hussain
    Journal of chemistry 2024 , 2024
    2024
    Citations: 9
  • Groundwater Quality Assessment using Multivariate Data Analysis in North Tamil Nadu Region, India
    KG Kumar A., Abhishek K., Rishab Dabas, Kothandaraman S.
    Indian Journal of Environmental Protection 44 (2), 176-184 , 2024
    2024
  • Assessment of the Sub-Base Material for the Optimum Moisture Content and Maximum Dry Density Using Amalgamated Pond Ash with Reclaimed Asphalt on Road Pavement
    R Vijayakumar, K Govidhasamy
    Journal of Ecological Engineering , 2024
    2024
    Citations: 1
  • The Combined Effect of Pond Ash with Borrowed Soil Materials along with Milling Waste for Flexible Pavement Sub-Grade Crater Foiling and Strength Characteristic Enhancement
    R Vijayakumar, K Govindhasamy, SK Kumar
    Ecological Engineering & Environmental Technology 25 (5) , 2024
    2024
    Citations: 3
  • Geospatial assessment of LULC Changes in Western Tamil Nadu, India
    GM Siruvalayam, KP Kuppusamy, K Saravanan, G Kumar, M Kuppusamy, ...
    Water and Energy International 66 (10), 27-32 , 2024
    2024
  • Analysis of hydro geochemical quality in and around Tiruvallur district, Tamil Nadu using geostatistical techniques
    K Govindasamy, T Perumal, B Sellamuthu
    5TH INTERNATIONAL CONFERENCE ON INNOVATIVE DESIGN, ANALYSIS & DEVELOPMENT … , 2023
    2023
  • Extraction of heavy metal ion from industrial wastewater by using bio-nanomaterial composite
    B Sellamuthu, ASK Ramachandran, K Govindasamy
    5TH INTERNATIONAL CONFERENCE ON INNOVATIVE DESIGN, ANALYSIS & DEVELOPMENT … , 2023
    2023
    Citations: 2
  • Hydrogeochemical analysis and groundwater quality applications of chloride in and around Puzhal Lake, Tamil Nadu, India
    G Kumar, S Baskar, S Prabhu
    International Journal of Health Sciences 6 (5), 11068–11077 , 2022
    2022
    Citations: 2
  • Optimization of Atterberg limits of treated expansive soils with Taguchi method
    JA Gobena, G Kumar, S Suppiah
    Materials Today: Proceedings 43, 2127-2133 , 2021
    2021
    Citations: 4
  • Land Suitability Assessment Using Remote Sensing And Geographical Information System In Mannargudi Block, South India
    BG Kumar
    International Journal Of Scientific & Technology Research 8 (11) , 2019
    2019
    Citations: 2
  • Strength Behavior of Pumice Stone Lightweight Concrete Beam in Contrast with Reinforced Concrete Beam
    RSJAM Kumar G
    International Journal of Recent Technology and Engineering 8 (3) , 2019
    2019
    Citations: 6
  • Geospatial Technology to Assess the Site Suitability of Solid Waste Management in Salem Corporation, South India
    GKS Baskar
    International Journal of Emerging Technologies and Innovative Research 6 (6) , 2019
    2019
  • Experimental Study on Partial Replacement of Cement by Fly Ash
    RSJAM G. Kumar
    Jour of Adv Research in Dynamical & Control Systems 10 (8) , 2018
    2018
    Citations: 7
  • Hydrogeochemical characteristics and groundwater contamination in the rapid urban development areas of Coimbatore, India
    S Selvakumar, N Chandrasekar, G Kumar
    Water Resources and Industry 17, 26-33 , 2017
    2017
    Citations: 414
  • Evaluation of Groundwater Potential Index (GWPI) using geophysical Survey in Kallar Watershed, Tamil Nadu, India
    G Kumar, D Srinivasan
    International Journal of Earth science and Engineering 9 (05), 1902-1906 , 2017
    2017
    Citations: 5

MOST CITED SCHOLAR PUBLICATIONS

  • Hydrogeochemical characteristics and groundwater contamination in the rapid urban development areas of Coimbatore, India
    S Selvakumar, N Chandrasekar, G Kumar
    Water Resources and Industry 17, 26-33 , 2017
    2017
    Citations: 414
  • Climatic Water Balance Study and Drought assessment in Kallar Watershed, Tamil Nadu, India
    G Kumar, D Srinivasan
    International Journal of Earth science and Engineering 9 (3), 958-962 , 2016
    2016
    Citations: 10
  • Groundwater quality and suitability assessment in Tirupur region, Tamil Nadu, India
    G Kumar, S Kothandaraman, K Karuppanan, S Hussain
    Journal of chemistry 2024 , 2024
    2024
    Citations: 9
  • Groundwater Quality and Suitability Assessment in Tirupur Region, Tamil Nadu, India.
    S Kothandaraman, K Karuppanan, S Hussain
    Journal of Chemistry 2024 , 2024
    2024
    Citations: 8
  • Experimental Study on Partial Replacement of Cement by Fly Ash
    RSJAM G. Kumar
    Jour of Adv Research in Dynamical & Control Systems 10 (8) , 2018
    2018
    Citations: 7
  • Strength Behavior of Pumice Stone Lightweight Concrete Beam in Contrast with Reinforced Concrete Beam
    RSJAM Kumar G
    International Journal of Recent Technology and Engineering 8 (3) , 2019
    2019
    Citations: 6
  • Evaluation of Groundwater Potential Index (GWPI) using geophysical Survey in Kallar Watershed, Tamil Nadu, India
    G Kumar, D Srinivasan
    International Journal of Earth science and Engineering 9 (05), 1902-1906 , 2017
    2017
    Citations: 5
  • Assessment of groundwater quality for Veppanthattai Taluk, Perambalur District, Tamil Nadu using remote sensing and GIS techniques
    G Kumar, K Prabakaran, G Selvam
    International Journal of Recent Scientific Research 6 (3), 3142-3146 , 2015
    2015
    Citations: 5
  • Optimization of Atterberg limits of treated expansive soils with Taguchi method
    JA Gobena, G Kumar, S Suppiah
    Materials Today: Proceedings 43, 2127-2133 , 2021
    2021
    Citations: 4
  • Groundwater salinization and suitability assessment in the coastal aquifer of the Thiruvallur district, India
    A Vijayakumar, G Kumar, S Selvakumar
    Water Quality Research Journal 60 (1), 60 , 2025
    2025
    Citations: 3
  • The Combined Effect of Pond Ash with Borrowed Soil Materials along with Milling Waste for Flexible Pavement Sub-Grade Crater Foiling and Strength Characteristic Enhancement
    R Vijayakumar, K Govindhasamy, SK Kumar
    Ecological Engineering & Environmental Technology 25 (5) , 2024
    2024
    Citations: 3
  • Geospatial Modeling for Demarcation of Groundwater Poten-tial Zone Using WIO and CIS Techniques in Kallar Water-shed, South India
    G Kumar, D Srinivasan, R Selvakumar
    Int. J. of Innov. Sci. Eng & Technol 1 (10), 83-88 , 2014
    2014
    Citations: 3
  • Extraction of heavy metal ion from industrial wastewater by using bio-nanomaterial composite
    B Sellamuthu, ASK Ramachandran, K Govindasamy
    5TH INTERNATIONAL CONFERENCE ON INNOVATIVE DESIGN, ANALYSIS & DEVELOPMENT … , 2023
    2023
    Citations: 2
  • Hydrogeochemical analysis and groundwater quality applications of chloride in and around Puzhal Lake, Tamil Nadu, India
    G Kumar, S Baskar, S Prabhu
    International Journal of Health Sciences 6 (5), 11068–11077 , 2022
    2022
    Citations: 2
  • Land Suitability Assessment Using Remote Sensing And Geographical Information System In Mannargudi Block, South India
    BG Kumar
    International Journal Of Scientific & Technology Research 8 (11) , 2019
    2019
    Citations: 2
  • Recent trends in the development and growth of solar technologies: a review
    KS Kumar, R Surakasi, K Govindhasamy, G D'mello, B Tharanisrisakthi
    Journal of Thermal Engineering 11 (4), 1064-1074 , 2025
    2025
    Citations: 1
  • Sol–Gel Synthesis and Antibacterial Effects of a Nano-Enhanced Cd Doped ZnO Nanorod Conjugate
    NS Kumar, SR Gibin, K Govindhasamy, A Mariappan, A Muthuvel, ...
    Physics of the Solid State 67 (2), 111-119 , 2025
    2025
    Citations: 1
  • Assessment of the Sub-Base Material for the Optimum Moisture Content and Maximum Dry Density Using Amalgamated Pond Ash with Reclaimed Asphalt on Road Pavement
    R Vijayakumar, K Govidhasamy
    Journal of Ecological Engineering , 2024
    2024
    Citations: 1
  • Typical growth of roads with modern materials an art views
    V Radhakrishnan, K Govindhasamy
    AIP Conference Proceedings 3192 (1), 020024 , 2024
    2024
  • Groundwater Quality Assessment using Multivariate Data Analysis in North Tamil Nadu Region, India
    KG Kumar A., Abhishek K., Rishab Dabas, Kothandaraman S.
    Indian Journal of Environmental Protection 44 (2), 176-184 , 2024
    2024